package com.tengol.demo.design.pattern.structural.flyweight;

/**
 * StringTest
 *
 * @author dongrui
 * @date 2019/03/07
 */
public class StringTest {
    public static void main(String[] args) {
        String a = null;
        String b = "";
        String c = "c";
        String d = "";
        System.out.println(b==d);
        System.out.println(a);
        System.out.println(c);
        System.out.println(b);
    }
}
